Exhaust-muffler.



PATENTED JAN. 23, 1906.

W R KAHLENBBRG EXHAUST MUFFLER.

APPLICATION FILED SEPT. 9, 1905.

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L7 Y m u LS3 A) A 0 o O O 0 0 Mr 0 o o o .Q o Q Q O o 0 o 0 O 0 m o 0 K k UNITED STATES PATENT OFFICE.

WILLIAM KAHLENBERG. TWO RlVERS, WISCONSIN.

EXHAUST-MUFFLER.

Specification of Letters Patent.

Patented Jan. 23, 1906.

Application fi ed September 9. 1905. serial No, 277,775.

' in Exhaust-Mufllers'; arid I do hereby declare description thereof.

that the following is a full, clear, and exact My invention consists in certain peculiarities of construction and combination of parts to be fully set forth hereinafter, with reference to the accompanying drawings, and subsequently claimed, its object being to provide a simple and effective muffler for engines in which the travel of the exhaust may be switched to the outside of the mufflerjacket or passed freely through the same at the will of the operator.

In the drawings, Figure 1 represents a longitudinal section of a mufiler made in accordance with my invention; Fig. 2, a cross-section of the same in line 2 2 of,Fig. l, and Fig. 3 a detailsection of the valve-handle con nection as indicated by line 3 3 of Fig. 2.

Referring by letter to the drawings, A. represents a drum, and B the heads thereof, which are provided with glands G for the reception of exhaust inlet and outlet pipes l) D, respectivel An internal jacket E is secured to the lieads B, forming a space between the inner walls of the drum clan area equal to or greater than the exhaust-pipe area, and this jacket is provided at both ends with rows of perforations E, which combined are also equal to the exhaust-pipe area. A butterfly valve F, having its stein G pro-' vided with journals in the walls of the aclret E, is centrally located in the latter, and its stem projects through the drum and is'secured to the hub ll of a hand-lever i, said hub being loosely mounted in a hollow hose cl, which is flanged and secured to the wall of said drum. Upon the face of the boss 5 is fitted a split friction-ring I, having ears 0/ a, which straddle a lug ii, extending inward from the hand-lever.- 'lhis lug together with the ears a a of the ri vided with openings, the ear a being to receive the thread-spindle of a hand-i L, having a hub which is adapted to im against the face of, the car a of the cpl" and through its threaded connection with the lug b draws said ears together, thereby closing the ring upon the boss J sufficiently to exert a friction that will hold the butterfly-valve, through its connections, in a set position. I

When the valve F is in the closed position, (shown in full lines of the drawings,) the exhaust is directed, as indicated bythe arrows,

through the forward perforations and be tween the walls of the drum and jacket until it reaches the rear set of perforations, where it escapes through the latter to the outletipe.

If the handle is turned so as to open the valve, the exhaust has a clear passage directly through the acket to theoutlet and is not effected bythe muffler. Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A muffler consisting of a closed drum provided with heads at either end thereof, exhaust inlet or outlet openings in the heads, an inner jacket of less diameter than the drum in communication with the exhaust and inlet openings, peripheral openings in the jacket adjacent to its ends, and a valve fitted n said jacket between the peripheral openings.

an inner jacket of less diameter than said drum, inlet and outlet exhaust openings therefor, two series of openin s at either end of the jacket, a valve fitted t erein between the series of openings, a stem for said valve, a lever mounted on the stem, a boss secured to the drum concentric with the valve-stein, and a friction-band mounted on said hose and connected to the handle.

3. muffler consisting of a drum having an. inner jacket less diameter than the inlet and outlet exhaust o enii'igs r, two series of openings at eit 'ier end tween the iatt said drum, valve said a c intermediate of the two of openings, stein for said valve, a .cd to-the outside of the aforesaid h which the valve-stem projects, d to the valve-stein acjacent to provided with a lug, a split ring 2. A muffler consisting of a drum having the jacket communicating with the space 2 emeee fitted over said boss having eers engaging have hereunto set my hand, at Two Rivers, the said lug, and a hand-wheel in'threaded in the county of Menitowoc and State of Wisengagement' with one of the ears, whereby consin, in the presence of two witnesses.

the tension of the aforesaid split ring is ad- WILLIAM R. KAHLENBERG. 5 justed upon the boss and the lever. secured Witnesses:

thereto. FRED W. DICKE,

In testimony that I claim the foregoing I AUeUs'r DRAEGER. 

